Keep input focused and keyboard open after adding tasks

- Added useRef to manage input focus directly
- Added useEffect to auto-focus when form becomes visible
- Refocus input after successful task creation with setTimeout
- Modified handleBlur to preserve focus when keeping form open
- Provides seamless continuous task input experience on mobile

components/InlineItemCreate.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import { useState } from 'react'
+import { useState, useRef, useEffect } from 'react'
 import { useRouter } from 'next/navigation'
 import { createItem } from '@/lib/actions'
 import { Plus } from 'lucide-react'
@@ -19,6 +19,19 @@ export default function InlineItemCreate({ listId }: InlineItemCreateProps) {
   const [isSubmitting, setIsSubmitting] = useState(false)
   const [error, setError] = useState('')
   const [keepFormOpen, setKeepFormOpen] = useState(false)
+  const inputRef = useRef<HTMLInputElement>(null)
+
+  // Focus input when form becomes visible
+  useEffect(() => {
+    if ((isCreating || keepFormOpen) && inputRef.current) {
+      // Small delay to ensure the input is rendered
+      setTimeout(() => {
+        if (inputRef.current) {
+          inputRef.current.focus()
+        }
+      }, 50)
+    }
+  }, [isCreating, keepFormOpen])
 
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault()
@@ -49,6 +62,13 @@ export default function InlineItemCreate({ listId }: InlineItemCreateProps) {
       
       // The revalidatePath in createItem will refresh the data
       // but we'll keep the form open due to keepFormOpen state
+      
+      // Refocus the input after a short delay to keep keyboard open
+      setTimeout(() => {
+        if (inputRef.current) {
+          inputRef.current.focus()
+        }
+      }, 100)
     } catch (error) {
       console.error('Error creating item:', error)
       const errorMessage = error instanceof Error ? error.message : 'Failed to add task'
@@ -77,9 +97,13 @@ export default function InlineItemCreate({ listId }: InlineItemCreateProps) {
     }
   }
 
-  const handleBlur = () => {
-    // Force viewport reset on iOS Safari
-    window.scrollTo(0, 0)
+  const handleBlur = (e: React.FocusEvent) => {
+    // Only handle blur if we're not keeping the form open
+    // This prevents the keyboard from closing when we want it to stay open
+    if (!keepFormOpen) {
+      // Force viewport reset on iOS Safari
+      window.scrollTo(0, 0)
+    }
   }
 
   if (!isCreating && !keepFormOpen) {
@@ -98,6 +122,7 @@ export default function InlineItemCreate({ listId }: InlineItemCreateProps) {
     <form onSubmit={handleSubmit} className="bg-white border-2 border-blue-400 rounded-lg p-4 sm:p-5 shadow-sm">
       <div className="mb-3 sm:mb-4">
         <input
+          ref={inputRef}
           type="text"
           value={title}
           onChange={(e) => {